CN109706765A - A kind of fixed point being kept fixed suitable for spatial position determines power connection fracture structure - Google Patents
A kind of fixed point being kept fixed suitable for spatial position determines power connection fracture structure Download PDFInfo
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- CN109706765A CN109706765A CN201811533524.1A CN201811533524A CN109706765A CN 109706765 A CN109706765 A CN 109706765A CN 201811533524 A CN201811533524 A CN 201811533524A CN 109706765 A CN109706765 A CN 109706765A
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- 238000009941 weaving Methods 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 229920000271 Kevlar® Polymers 0.000 claims description 12
- 239000004761 kevlar Substances 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 230000008901 benefit Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Emergency Lowering Means (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a kind of fixed points being kept fixed suitable for spatial position to determine power connection fracture structure, comprising: thick section rope and thin segment rope；Wherein, the thick section rope is connected with the thin segment rope.The present invention overcomes traditional firer to compress release device to have the shortcomings that large impact, high pollution, not easy to maintain, realizes that simple and reliable position is kept fixed and release function.
Description
Technical Field
The invention belongs to the technical field of deep space exploration, and particularly relates to a fixed-point fixed-force connection breaking structure suitable for keeping a space position fixed.
Background
In the aerospace mission, in order to withstand the mechanical vibration in the launching and landing stages, functional components on the satellite ship need to be compressed to keep the initial state and position of the functional components, the stability of the functional components is prevented from being influenced by vibration or disturbance, and the functional components start to work after the compressing mechanism is unlocked after landing.
The traditional fire compression and release device has the defects of large impact, high pollution and difficult storage.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the fixed point fixed force connection breaking structure suitable for keeping the space position fixed is provided, the defects of large impact, high pollution and difficult storage of the traditional firer compression release device are overcome, and the simple and reliable position keeping fixing and releasing functions are realized.
The purpose of the invention is realized by the following technical scheme: a fixed point fixed force connection breaking structure adapted to be held stationary in a spatial position, comprising: thick section ropes and thin section ropes; wherein the thick section rope and the thin section rope are connected.
In the fixed-point fixed-force connection breaking structure suitable for keeping a space position fixed, the thick-section rope comprises a thick-section coating layer, a thick-section braided rope and a thick-section braided rope hook; one end of the thick-section braided rope is connected with the thick-section braided rope hook; the thick section cladding layer is arranged on the outer surface of the thick section braided rope; the thick-section braided rope hook is connected with the thin-section rope.
In the fixed-point fixed-force connection breaking structure suitable for keeping a space position fixed, the thin-section rope comprises a thin-section coating layer, a thin-section braided rope and a thin-section braided rope hook; one end of the fine-section braided rope is connected with the fine-section braided rope hook; the thin section cladding layer is arranged on the outer surface of the thin section braided rope; the small-section braided rope hook is connected with the thick-section braided rope hook.
In the fixed-point fixed-force connection breaking structure suitable for keeping the space position fixed, the thin-section rope further comprises a breaking point; wherein, the breaking point is positioned at the hooking and connecting position of the fine-section braided rope hook.
In the fixed-point fixed-force connection breaking structure suitable for keeping the space position fixed, the thick-section braided rope is formed by weaving a double-twisted three-strand rope.
In the fixed-point fixed-force connection breaking structure suitable for keeping the space position fixed, the thin-section braided rope is formed by weaving a double-twisted three-strand rope.
In the fixed-point fixed-force connection breaking structure suitable for keeping the space position fixed, the thick-section rope is 400 denier Kevlar bunched yarns.
In the fixed-point fixed-force connection breaking structure suitable for keeping the space position fixed, the thin-section rope is 136 denier Kevlar strand.
In the fixed-point fixed-force connection breaking structure suitable for maintaining and fixing the spatial position, the weaving method of the thick-section braided rope comprises the following steps: the yarns are twisted spirally and compositely with other yarn bundles in the axial direction while being twisted by self, and the twisting direction of a single yarn is from bottom to top and from right to left after being twisted; after twisting the fiber, the yarn dividing process is carried out, a section of fiber is wound on three core tubes, the core tubes are uniformly distributed at 120 degrees on a disc of a rope twisting machine, and the fiber is braided by reciprocating forward to finish three-strand rope twisting.
In the fixed-point fixed-force connection breaking structure suitable for maintaining and fixing the spatial position, the braiding method of the thin-section braided rope comprises the following steps: the yarns are twisted spirally and compositely with other yarn bundles in the axial direction while being twisted by self, and the twisting direction of a single yarn is from bottom to top and from right to left after being twisted; after twisting the fiber, the yarn dividing process is carried out, a section of fiber is wound on three core tubes, the core tubes are uniformly distributed at 120 degrees on a disc of a rope twisting machine, and the fiber is braided by reciprocating forward to finish three-strand rope twisting.
Compared with the prior art, the invention has the following beneficial effects:
(1) compared with the traditional fixing and releasing device, the invention adopts a light and simple structure, and can realize the functions of position keeping fixing and connection breaking;
(2) in the process of realizing position holding and fixing and connection breaking, the invention has the advantages of low impact, no pollution and no generation of redundant substances, and can improve the safety of the system;
(3) according to the invention, through the design of hooking and weaving of ropes with different thicknesses, accurate fixed-point fixed-force breaking is realized, and the rope fixing device has the advantages of reliable fixing and reliable breaking and controllable breaking release;
(4) the invention adopts a flexible rope weaving structure, is suitable for keeping fixation and connection breaking in a narrow space or a long distance, and has the advantage of strong working condition adaptability.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a fixed point fixed force connection breaking structure suitable for maintaining a fixed spatial position according to an embodiment of the present invention;
FIG. 2 is a drawing of a method of weaving a wide strand and a narrow strand according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a fixed point fixed force connection breaking structure suitable for maintaining a fixed spatial position according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic diagram of a fixed-point fixed-force connection breaking structure suitable for maintaining a fixed spatial position according to an embodiment of the present invention. As shown in fig. 1, the fixed-point fixed-force connection breaking structure suitable for keeping a space position fixed comprises a thick-section rope 1 and a thin-section rope 2. The thick section rope is woven by 400 denier Kevlar bunches, one end of the thick section rope is in a rope end structure, the other end of the thick section rope is in a closed annular hook-shaped structure, the thin section rope is woven by 136 denier Kevlar bunches, one end of the thin section rope is in the rope end structure, and the other end of the thin section rope is in the closed annular hook-shaped structure.
As shown in fig. 1, the thick section rope 1 includes a thick section coating layer 11, a thick section braided rope 12 and a thick section braided rope hook 13; wherein, one end of the thick-section braided rope 12 is connected with a thick-section braided rope hook 13; the thick section coating layer 11 is wrapped on the outer surface of the thick section braided rope 12; the thick-section rope-braid hook 13 is connected with the thin-section rope 2. The thick-section braided rope 12 is formed by weaving three strands of twisted ropes, an annular hook-shaped structure is formed after the tail end is bent back, namely a thick-section braided rope hook 13, and the thick-section wrapping layer 11 wraps the thick-section braided rope 12;
as shown in fig. 1, the segment rope 2 includes a segment covering 21, a segment cord 22, a segment cord hook 23, and a breaking point 24. Wherein,
one end of the fine-section braided rope 22 is connected with a fine-section braided rope hook 23; the thin section coating layer 21 is wrapped on the outer surface of the thin section braided rope 22; the small-section braided rope hook 23 is connected with the thick-section braided rope hook 13. The breaking point 24 is located at the hook connection position of the fine-section braided rope hook 23. The fine segment braided rope 22 is formed by weaving three strands of twisted ropes, and an annular hook-shaped structure is formed after the tail end is bent back, namely the fine segment braided rope hook 23.
The working principle is as follows: when in connection, the thick-section rope 1 and the thin-section rope 2 are respectively hooked with the thin-section braided rope hook 23 through the thick-section braided rope hook 13, the other ends of the thick-section rope 1 and the thin-section rope 2 are respectively connected with a functional component to be fixed, then a certain pre-tightening tension is applied to tighten the whole rope system including the thick-section coating layer 11, the thick-section braided rope 12, the thick-section braided rope hook 13, the thin-section coating layer 21, the thin-section braided rope 22 and the thin-section braided rope hook 23, the relative positions of the functional components are fixed, and the function of keeping the positions fixed is realized; when unlocking and breaking are needed, the driving part further increases the pulling force to a preset breaking value, the cutting force of the fine-section rope-braid hook 23 on the hooking part reaches the limit, and the fine-section rope is broken from the breaking point 24 of the fine-section rope, so that fixed-point fixed-force breaking is realized.
The thick section ropes 1 are 400 denier Kevlar tow. The fine length ropes 2 were 136 denier Kevlar tow. The connecting structure adopts Kevlar fiber high polymer ropes, which have the characteristics of high specific strength, high specific modulus, high temperature resistance, flame resistance and the like, and the high polymer ropes have much smaller vibration dynamic transmission effect than metal ropes, are light and soft, and are easy to weave to realize the performance of fixed point fixed force breaking.
The connecting structure is formed by hooking two sections of Kevlar braided ropes with different thicknesses, as shown in figure 1. The connecting structure comprises a thick-section rope, a connecting breaking area, a breaking point and a thin-section rope, wherein the thin-section rope is formed by weaving 136D Kevlar strands, the thick-section rope is formed by weaving 400 denier Kevlar strands, the thick-section rope and the thin-section rope are respectively hooked with each other through connecting breaking rings, and when the thick-section rope and the thin-section rope are connected, a certain pre-tightening tension is applied to tighten the thick-section rope and the thin-section rope, so that the function of keeping the position fixed is realized; when the hook structure is subjected to breaking force larger than preset breaking force, the hook structure is broken from the breaking point of the thin section rope, and fixed-point fixed-force breaking is realized.
The rope is braided by double twisting and three-strand twisting, as shown in fig. 2. The yarn is twisted spirally and compositely with other yarn bundles in the axial direction while self-twisting, and the twisting direction of the single yarn is from bottom to top and from right to left after twisting. After twisting the fiber, the yarn dividing process is carried out, the fiber with certain length is wound on three core tubes, the core tubes are uniformly distributed at 120 degrees on a disc of a rope twisting machine, and the fiber is braided by reciprocating forward to finish the three-strand rope twisting product. The regularity of the yarn in the weaving process and the stress uniformity of the single-strand tows are ensured, and the abrasion is reduced, so that the stability of the mechanical property of the rope is ensured. The weaving process is shown in table 1.
TABLE 1 fixed point constant force broken rope weaving process
Broken structure rope is connected in the erection joint as shown in fig. 3, and its thick section rope is connected with the go-between that needs the position to keep fixed part, and thin section rope twines on the fixed column after the protection passageway of protective case, and after the pretension, the broken point is located in the protective case, and the weak region of protection can not receive external influence, then splices fixedly to the winding end of fixed column to in order to prevent that the winding end pine from taking off, carry out the anticreep design with the nonmetal cap.
The embodiment aims at the problem of the traditional firer compressing and releasing device, and provides a fixed point fixed force connection breaking structure suitable for keeping a space position fixed, the position of a functional component is kept not to deviate before the functional component is started, and when the functional component is started, a fixed point fixed force breaking rope is broken at a preset position under the action of preset tension, so that the fixed point fixed force connection breaking structure has the advantages of low impact, no pollution and accurate fixed point fixed force breaking.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A fixed point fixed force connection breaking structure suitable for space position keeping fixing is characterized by comprising: a thick section rope (1) and a thin section rope (2); wherein the thick section rope (1) and the thin section rope (2) are connected.
2. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 1, wherein: the thick-section rope (1) comprises a thick-section coating layer (11), a thick-section braided rope (12) and a thick-section braided rope hook (13); wherein,
one end of the thick-section braided rope (12) is connected with the thick-section braided rope hook (13);
the thick section coating layer (11) is coated on the outer surface of the thick section braided rope (12);
the thick-section braided rope hook (13) is connected with the thin-section rope (2).
3. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 2, wherein: the thin-section rope (2) comprises a thin-section coating layer (21), a thin-section braided rope (22) and a thin-section braided rope hook (23); wherein,
one end of the fine-section braided rope (22) is connected with the fine-section braided rope hook (23);
the thin section coating layer (21) is coated on the outer surface of the thin section braided rope (22);
the small-section braided rope hook (23) is connected with the thick-section braided rope hook (13).
4. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 3, wherein: the thin section rope (2) also comprises a breaking point (24); wherein,
the breaking point (24) is positioned at the hooking and connecting position of the fine-section braided rope hook (23).
5. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 2, wherein: the thick-section braided rope (12) is formed by weaving a double-twisted three-strand rope.
6. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 3, wherein: the thin-section braided rope (22) is formed by weaving a double-twisted three-strand rope.
7. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 2, wherein: the thick section rope (1) is 400 denier Kevlar bundle wires.
8. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 2, wherein: the thin-section rope (2) is 136 denier Kevlar bundle wires.
9. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 5, wherein: the weaving method of the rough-segment braided rope (12) comprises the following steps: the yarns are twisted spirally and compositely with other yarn bundles in the axial direction while being twisted by self, and the twisting direction of a single yarn is from bottom to top and from right to left after being twisted; after twisting the fiber, the yarn dividing process is carried out, a section of fiber is wound on three core tubes, the core tubes are uniformly distributed at 120 degrees on a disc of a rope twisting machine, and the fiber is braided by reciprocating forward to finish three-strand rope twisting.
10. The fixed point fixed force connection breaking structure suitable for keeping a space position fixed according to claim 6, wherein: the weaving method of the thin section braided rope (22) comprises the following steps: the yarns are twisted spirally and compositely with other yarn bundles in the axial direction while being twisted by self, and the twisting direction of a single yarn is from bottom to top and from right to left after being twisted; after twisting the fiber, the yarn dividing process is carried out, a section of fiber is wound on three core tubes, the core tubes are uniformly distributed at 120 degrees on a disc of a rope twisting machine, and the fiber is braided by reciprocating forward to finish three-strand rope twisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811533524.1A CN109706765B (en) | 2018-12-14 | 2018-12-14 | Fixed point constant force connection breaking structure suitable for space position keeping and fixing |
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| CN201811533524.1A CN109706765B (en) | 2018-12-14 | 2018-12-14 | Fixed point constant force connection breaking structure suitable for space position keeping and fixing |
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| CN109706765A true CN109706765A (en) | 2019-05-03 |
| CN109706765B CN109706765B (en) | 2021-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110550149A (en) * | 2019-09-27 | 2019-12-10 | 广船国际有限公司 | Cable, ship and method for acquiring dangerous area of cable fracture on ship |
| CN114808499A (en) * | 2022-04-21 | 2022-07-29 | 李文娟 | Steel wire rope joint and connecting method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110550149A (en) * | 2019-09-27 | 2019-12-10 | 广船国际有限公司 | Cable, ship and method for acquiring dangerous area of cable fracture on ship |
| CN110550149B (en) * | 2019-09-27 | 2021-05-25 | 广船国际有限公司 | Cable, ship and method for acquiring dangerous area of cable fracture on ship |
| CN114808499A (en) * | 2022-04-21 | 2022-07-29 | 李文娟 | Steel wire rope joint and connecting method thereof |
| CN114808499B (en) * | 2022-04-21 | 2023-11-10 | 李文娟 | Wire rope connector and connecting method thereof |
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| CN109706765B (en) | 2021-09-07 |
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